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Old 28-07-2016, 07:33   #31
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Re: Coordinate System

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Originally Posted by deblen View Post
You are picky...
Have you only just noticed?

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BUT!! I speak of PRACTICAL vessel navigation & I maintain that the avg. user will never work with 6 or 10 ft.
Besides-derived position is the antenna location-so IMHO-for practical purposes,going beyond two decimal points on a GPS display was a big marketing ploy & adds only confusion to the avg user.

I find it hilarious when a boater reads his position over the air to 3 decimals.
Me too.
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Old 28-07-2016, 08:32   #32
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Re: Coordinate System

3 decimals is only important when impending doom threatens, as in a furycame from hell,
or when yer lost at sea and you call for assist when your food supplies are gone and you refuse to eat fish.
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Old 28-07-2016, 09:36   #33
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Re: Coordinate System

actualy, no Zee.
it's only important if you want to let your AP dock the boat.
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Old 28-07-2016, 10:42   #34
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Re: Coordinate System

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actualy, no Zee.
it's only important if you want to let your AP dock the boat.
that wont work here as you will still be 50 meters to 500 meters off.......gps aint the ticket here unless ye want holey boat ha ha ha
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Old 28-07-2016, 12:38   #35
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Re: Coordinate System

Plugging in decimal portion of minutes vs seconds (swapping whichever way makes it wrong)
You'll still end up within a few meters of the same location....
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Old 28-07-2016, 15:48   #36
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Re: Coordinate System

About the only place I see value in the sort of precision that we are talking about is when using an anchor alert app. You may only know your true location based on the WGS84 grid to within 10-20 meters or more, but it will tell you when you drift a meter or two backwards.
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Old 28-07-2016, 17:22   #37
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Re: Coordinate System

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About the only place I see value in the sort of precision that we are talking about is when using an anchor alert app. You may only know your true location based on the WGS84 grid to within 10-20 meters or more, but it will tell you when you drift a meter or two backwards.

Really handy to find the head without putting lights on
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Old 28-07-2016, 17:31   #38
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Re: Coordinate System

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Who needs to sand and varnish when you sail two chlorox bottles tied together
GRP boats are known as Tupper Ware containers locally
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Old 28-07-2016, 19:38   #39
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Re: Coordinate System

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The Australian datum was last updated in 1999. According to today's media release, we're 1.5 metres away from where we were then:
I wish they would keep that stuff to themselves, I went through a gap between a rock and an islet this morning and was worried about where the rock now was all the way through??
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Old 29-07-2016, 03:25   #40
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Re: Coordinate System

OK....I started this thread and from my perspective I will sign off with this gem. And thanks for the input all, I have an answer to my quandary.

The gem..."wherever you go, that is where you are". Stuff the coordinates !

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